US4753911AExpiredUtility

Insoluble complex oxidation catalysts

45
Assignee: REILLY TAR & CHEM CORPPriority: Nov 24, 1986Filed: Nov 24, 1986Granted: Jun 28, 1988
Est. expiryNov 24, 2006(expired)· nominal 20-yr term from priority
Inventors:Gerald L. GoeThomas D. BaileyJames R. Beadle
B01J 31/181B01J 2231/70B01J 31/4015B01J 2531/62B01J 31/1805B01J 31/1658
45
PatentIndex Score
8
Cited by
20
References
17
Claims

Abstract

Insoluble complex oxidation catalysts comprising chromium salts bound on an insoluble polymer supports having pendant pyridine groups, that are useful in oxidation reactions such as Tetralino® to α-tetralone, ethylbenzene to acetophenone, and 2-methyl-5-ethylpyridine to 2-methyl-5-acetylpyridine. Also disclosed are processes for accomplishing such oxidations utilizing such catalysts.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. An insoluble oxidation catalyst, comprising a chromium salt bound on an insoluble polymer support having pendant pyridine groups. 
     
     
       2. The catalyst of claim 1 wherein the polymer is a homopolymer or a copolymer derived from a vinylpyridine. 
     
     
       3. The catalyst of claim 2 wherein the vinylpyridine is 4-vinylpyridine. 
     
     
       4. The catalyst of claim 2 wherein the vinylpyridine is 2-vinylpyridine. 
     
     
       5. The catalyst of claim 3 wherein the polymer is poly(4-vinylpyridine) cross-linked with 2% divinylbenzene. 
     
     
       6. The catalyst of claim 3 wherein the polymer is poly(4-vinylpyridine) cross-linked with 25% divinylbenzene. 
     
     
       7. The catalyst of claim 4 wherein the polymer is poly(2-vinylpyridine) cross-linked with 25% divinylbenzene. 
     
     
       8. The catalyst of claim 1 wherein the chromium salt is chromium (III) acetate. 
     
     
       9. The catalyst of claim 1 wherein the chromium salt is chromium (II) acetate. 
     
     
       10. The catalyst of claim 1 wherein the chromium salt is selected from the group consisting of chromium (III) nitrate, chromium (III) acetylacetonate, chromium (II) oxide, and chromic oxide. 
     
     
       11. The catalyst of claim 9 wherein the polymer is 2% chromium (II) acetate supported on a copolymer of 4-vinylpyridine cross-linked with 25% divinylbenzene. 
     
     
       12. The catalyst of claim 8 wherein the polymer is 2% chromium (III) acetate supported on a copolymer of 4-vinylpyridine cross-linked with 25% divinylbenzene. 
     
     
       13. The catalyst of claim 8 wherein the polymer is 2% chromium (III) acetate supported on a copolymer of 2-vinylpyridine cross-linked with 25% divinylbenzene. 
     
     
       14. The catalyst of claim 8 wherein the polymer is 2% chromium (III) acetate supported on a copolymer of 4-vinylpyridine cross-linked with 2% divinylbenzene. 
     
     
       15. The catalyst of claim 1 wherein the polymer contains at least about 10% by weight of pendant pyridine groups. 
     
     
       16. The catalyst of claim 1 wherein the polymer contains at least about 20-25% by weight of pendant pyridine groups. 
     
     
       17. The catalyst of claim 1 wherein the polymer conains at least about 50% by weight of pendant pyridine groups.

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